tee screen training module
TRANSCRIPT
Goals of This 15-Minute Module
Understand the design basis for tee
screens.
Review technical features for the
Airburst System
Identify response to common
technical challenges
Apply principles to intake structure
size
www.waterscreen.com
3
Intake Structures and Equipment
Fundamentals
TS 103:
Review and Quiz
TS 102: New Knowledge/
Skills & application
TS 101: Fundamentals
4
Review of the key points from the Intake
Structure training module
General types of intake structures:
Cylindrical Wedge Wire Screen, Flat
Panel Screens, Coanda Screens etc.
Intake Structure Sizing based on
Filtration, volume of flow, approach &
sweeping velocity, and head loss
Intake Structures are designed by the
right application of site location and
screening technology
5
Flow modification
Hydrodynamic zone of influence—the area around the intake through which intake flow is impacted.
7
The Starting Point for Sizing is the Same as
Any Other Process Technology:
How much filtration:
Wedge Wire Screens
with typical slot width
ranging from ¼ mm to 6mm
Volume of flow:
Q=f^3/s V=f/s Thus A= f^2
Q/A = Approach Velocity
A’=Square feet of open area
Q/A’ = Slot Velocity
Approach & sweeping velocity:
HeadlossSweep
Approach
8
Cylindrical Wedgewire ScreensCylindrical Wedgewire Screens use
hydrodynamic and mechanical exclusion to
protect the system from debris